Daniel 3:26-30 - They trusted in Him and defied the king's command

3:26,27

The king then approached the opening of the furnace, no doubt with a high degree of caution having seen what happened to the soldiers, and called on Shadrach, Meshach and Abednego to come out. So they came out of the fire. The various officials gathered round then and so that the fire had not harmed them at all (Is 43:2). There wasn’t even any superficial damage, no scorching of their robes, nor singing of their hair. 

3:28-30

Nebuchadnezzar reacted in his customary manner declaring the greatness of the God of Shadrach, Meshach and Abednego. He saw that they had trusted their God, and God had rescued them. So he then declares that anyone who blasphemes their God will be killed. He had seen the greatness of the Lord. The three of them were also given promotion.